Fastest way to check for value existance.

Posted by Itay Moav on Stack Overflow See other posts from Stack Overflow or by Itay Moav
Published on 2010-05-28T11:57:10Z Indexed on 2010/05/28 12:02 UTC
Read the original article Hit count: 161

Filed under:

php

|

best-practices

|

arrays

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php5

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php5.3

I have a list of values I have to check my input against it for existence.
What is the faster way?

This is really out of curiosity on how the internals work, not any stuff about premature optimization etc...

1.

$x=array('v'=>'','c'=>'','w'=>);
..
..
array_key_exists($input,$x);

2.

$x=array('v','c','w');
..
..
in_array($input,$x);

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